Problema Solution
rotate the following 90 degrees clockwise
(-4,3), (5,6), (4,-5)
Answer provided by our tutors
it depends on which axis, or combination of axes, the rotation is being performed
to rotate 90-degrees around the x-axis, then matrix multiplication requires a matrix such as:
[ 1 0 0
0 cos(90) -sin(90)
0 sin(90) cos(90) ]